How many pieces does the LEGO Dark Side Developer Kit (9754-1) have?

The LEGO Dark Side Developer Kit set (9754-1) contains 578 pieces. It was released in 2000 as part of the LEGO Mindstorms theme.

How can I find missing parts for LEGO set 9754-1?

On BrickMissing you can check which parts from the LEGO Dark Side Developer Kit (9754-1) you already own. Add your LEGO collection and we'll show exactly which of the 578 pieces you're missing and which you already have.

Can I build the LEGO Dark Side Developer Kit with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 578 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Dark Side Developer Kit from?

The LEGO Dark Side Developer Kit (9754-1) belongs to the LEGO Mindstorms theme. You can browse all Mindstorms sets on BrickMissing to find more sets from this theme.

Dark Side Developer Kit

9754-1 Mindstorms 2000 578 parts 11.1% repair risk Intermediate

Dark Side Developer Kit (9754-1) is a LEGO Mindstorms from 2000. The set contains 578 parts across 12 part and colour combinations in 4 colours — the full inventory below shows exactly which pieces you need to build or complete it.

Parts Inventory

🧱 578 parts

Part	Color	Qty	LEGO price each
Rubber Band 15mm [Square Cross Section] 23229	Black	2×	Check price → View
Wedge Plate 3 x 6 Cut Corners 2419	Light Gray	2×	Check price → View
Plate Round 2 x 2 with Rounded Bottom [Boat Stud] 2654	Black	16×	€0,07 View at LEGO → View
Technic Brick 1 x 10 [9 Pin Holes] 2730	Light Gray	4×	Check price → View
Technic Pin with Friction Ridges Lengthwise and Center Slots 2780	Black	44×	Check price → View
Technic Beam 1 x 4 Thin with Stud Connector 2825	Black	2×	€0,21 View at LEGO → View
Technic Engine Crankshaft Center 2854	Dark Gray	1×	Check price → View
Wheel Rim 24 x 14 VR with Center Axle Hole 2994	Black	4×	Check price → View
Plate 1 x 2 3023	Light Gray	16×	Check price → View
Plate 1 x 2 3023	Dark Gray	2×	Check price → View
Plate 2 x 8 3034	Dark Gray	4×	Check price → View
Bar 4L (Lightsaber Blade / Wand) 30374	Trans-Red	4×	€0,08 View at LEGO → View

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Repairability

Can you fix Dark Side Developer Kit if a piece goes missing?

11.1%Moderate repair risk

easy to fixguard this box

12 of the 108 part+color combinations in this set appear in 3 or fewer sets ever made. Lose one of those and a replacement is very hard to find.

Theme average

8.4%

All sets

6.7%

Hardest to replace

Technic Panel Fairing # 3 Large Long, La… · Light Gray · only this setTechnic Panel Fairing # 4 Large Long, La… · Light Gray · only this setTechnic Panel Fairing # 1 Large Short, L… · Light Gray · only this set

How we calculate this →